"Effective July 1, 2011, seniors with little or no income other than Old Age Security and the Guaranteed Income Supplement will receive additional annual benefits of up to $600 for single seniors and $840 for couples. Single recipients with an annual income (other than Old Age Security and the Guaranteed Income Supplement) of $2,000 or less, and couples with an annual income of $4,000 or less, will receive the full amount of the benefit. Above these income thresholds, the amount of the top-up will be gradually reduced and will be completely phased out at an income level of $4,400 for singles and $7,360 for couples."